Ok so - for the June test I had 2 of the "10 actual LSAT" books, and the SuperPrep, as well as some ghetto ones from McGraw Hill and whoever. I was scoring low-high 160's on all, including the SuperPrep, yet ended up 157 on the real one

Based on what I have read here, I ordered the LG Bible, the third 10 actual book, and am trying to find more. I will prob do the LR bible too, since that also seems popular. BUT - here's my real question: I see on the LSAC site there are offical tests available for $8 per - are these the PT's you guys are using? That seems insanely high for one test when the 10 actual books have 10 tests for $20, which seems more reasonable for people who ARE NOT YET LAWYERS!!!
Advice appreciated!